期刊
JOURNAL OF APPLIED PHYSICS
卷 111, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3673868
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资金
- Ukraine State Agency on Science, Innovation and Information [UU30/004, GP/F32/099]
- HKUST
- National Science Foundation (Materials World Network) [DMR-0908718]
- U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division
- CNMS [UR-08-869]
- Division Of Materials Research [0908718] Funding Source: National Science Foundation
Frequency dependent dynamic electromechanical response of the mixed ionic-electronic conductor film to a periodic electric bias is analyzed for different electronic and ionic boundary conditions. Dynamic effects of mobile ions concentration (stoichiometry contribution), charge state of acceptors (donors), electron concentration (electron-phonon coupling via the deformation potential), and flexoelectric effect contribution are discussed. A variety of possible nonlinear dynamic electromechanical responses of mixed electronic ionic conductors (MIEC) films including quasi-elliptic curves, asymmetric hysteresis-like loops with pronounced memory window, and butterfly-like curves are calculated. The electromechanical response of ionic semiconductor is predicted to be a powerful descriptor of local valence states, band structure and electron-phonon correlations that can be readily measured in the nanoscale volumes and in the presence of strong electronic conductivity. (C) 2012 American Institute of Physics. [doi:10.1063/1.3673868]
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